Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/2840#discussion_r19167091
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -856,6 +857,32 @@ class SparkContext(config: SparkConf) extends Logging {
listenerBus.addListener(listener)
}
+ /**
+ * :: DeveloperApi ::
+ * Request a number of executors from the cluster manager.
+ */
+ @DeveloperApi
+ def requestExecutors(numExecutors: Int): Unit = {
+ schedulerBackend match {
+ case b: CoarseGrainedSchedulerBackend =>
b.requestExecutors(numExecutors)
+ case null => logWarning("Attempted to request executors before
initializing the backend")
+ case _ => logWarning("Requesting executors is only supported in
coarse-grained mode")
+ }
+ }
+
+ /**
+ * :: DeveloperApi ::
+ * Request the cluster manager to kill the specified executors.
+ */
+ @DeveloperApi
+ def killExecutors(executorIds: Seq[String]): Unit = {
+ schedulerBackend match {
+ case b: CoarseGrainedSchedulerBackend => b.killExecutors(executorIds)
+ case null => logWarning("Attempted to kill executors before
initializing the backend")
--- End diff --
Same.
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